From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: BUG: unable to handle kernel NULL pointer dereference at 000000000000002c Date: Wed, 01 Feb 2012 16:21:57 -0500 (EST) Message-ID: <20120201.162157.880976652659067010.davem@davemloft.net> References: <4F26E72E.2020007@profihost.ag> <20120130.164828.1695146432151008554.davem@davemloft.net> <4F27A18F.3060907@profihost.ag> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: greg@kroah.com, eric.dumazet@gmail.com, jwboyer@gmail.com, hch@infradead.org, netdev@vger.kernel.org, david@fromorbit.com, stable@vger.kernel.org, gregkh@suse.de To: s.priebe@profihost.ag Return-path: Received: from shards.monkeyblade.net ([198.137.202.13]:35049 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932756Ab2BAVXk (ORCPT ); Wed, 1 Feb 2012 16:23:40 -0500 In-Reply-To: <4F27A18F.3060907@profihost.ag> Sender: netdev-owner@vger.kernel.org List-ID: From: Stefan Priebe - Profihost AG Date: Tue, 31 Jan 2012 09:08:47 +0100 > Hi David, Hi Greg, > >> In all, I think this request is invalid. >> >> You're asking me to submit patches to -stable which don't apply >> even remotely, and whose dependencies haven't even been applied >> to the tree. > > i'm sorry but it seems you miss something. The list of matches wasn't > mine it was the list you kernel guys generated in Dec 2011 while you > were discussing my NULL pointer dereference. That bug fix by Eric has lots of dependencies on other sets of non-trivial changes, so this will be a very difficult backport on many levels. Such a non-trivial backport has the danger of adding as many bugs as it is intended to fix. Therefore I will not be attempting to make this fix feasible for 3.0.x-stable, sorry. I seriously suggest that if you really are hitting this race (the exposure is very small, it only happens if you get redirects and redirects are not common for most hosts) that you move to a more recent kernel such as 3.1.x or 3.2.x, both of which have all the dependencies as well as the bug fix applied.